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两年制大学预代数/附录(操作方式)/分数的加法
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摘自维基教科书,开放世界中的开放书籍
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两年制大学预代数
|
附录(操作方式)
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求出通分母,然后对分子进行加法。如果可以的话,化简结果。
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书:两年制大学预代数
华夏公益教科书